Feeding or ruffling mechanism for sewing-machines.



L. 'ONDBRDONKQ RUPFLING MBOHANISM FOR SEWING MAG AYPLIOATION TILED 00130, 1902.

HINES.

FEEVDING on Patented Apr. 18, 1911 a mama-sum 1.

' w M V M :1

ml Mom: Flflll cm. IIAllnNnwu, n. c.

L. ONDBRDONK. FEEDING on RUFILING MECHANISM FOR SEWING monmns.

'APILIOATION TILED OUT. 30, 1902.

Patented Apr. 18, 1911.

2 sums-sum a.

a anwgl'cn 1n: co. VIAININGTON, p. c. I

Specification of Letters Patent. Patented Apr, 18 1911, Application filed October 30, 1902. Serial No. 129,397.

section, showing the latch for fastening together certain arts of the feeding mechanism; Fig. 6 is a detail in section, showing the sliding connection between the feed-supporting member, and the part for rocking To all whom it may concern:

Be it known that I, LANSING ONDERDONK, a citizen of the United States, residin at New York, in the county of New State of New York, have invented certain new and useful Improvements in Feedim the same. or uflhng Mechanisms for Sewmg-Ma- In these drawings, A IS the standard of chines, of which the following is a descripa blind stitch sewing machine; B, the overtion, reference being had to the accompanyanging arm or gooseneck, and C the work ing drawing and to the letters and figures of supporting plate, herein shown as a cylinreference marked thereon. drieal casing inclosing the feeding mechay invention relates to an improvement nism, and provided with a throat plate D in sewing machines, and particularly to having openings for the passage of the feed blind stitch sewing machines of the type dogs, and provided with a V-shaped cenillustrated in my applications for Letters tral rib or ridge E, over which the goods are Patent filed on the 29th day of March, 1899, crimped. Serial N 0. 711,025, patented Feb. 17th, 1903, The needle and looper-operating mecha- No. 721,077 and on the 31st day ofDecember, nisms are the same as those shown in the latter application above referred to. These 1901, Serial N 0. 87,959.

connections are not herein specifically shown e particular object of the vention is to provide a top feed mechanism and described as they are shown 1n detail inmy application 117,878, filed July 31,

The shaft 14 is oscillated by a suitable hether used for a feed no 01 a rufflln mechanism, and at its forward end is SO- mechanism, cured to a head 48, which has a rectangular h n a machine of the haracter referr d slot 49 at its lower end, in which slides the to, is to e used for certain classes of work squared head 51 of the pivot pin 50, which is attached to the lower end of the feedrog-carrying bar 52, dog 53 at its upper end. This shaft a, gives the forward and backward movement to the feed dogs 53. The shaft it gives the verthe link 54, fixed to the and pivotally attached to the bar ruflling, it is desirable the one case, and necessary in the other, 0 use a top feed mechanism coiperating with the lower feed. As

feed or ruffiing mechanism is connected to and operated by the lower feeding mechan sm, although it will be understood that 8h supporting the feed suc is not absolutely necessary, as other 52, latter sliding up and down as the means mfg be used for operating said top link 54 oscillates. feed or ru .ingmechanism. he numerals 55 and 56 represent two feed dogs having teeth in their lower forward edges. The f d dogs 55 and 56 are fixedly sleeved at the front of the machine 59, extending longitudinally of the work support, and 'ournaled in the up- I per ends of arms 60, 60, fixed at their lower ends to the rock shaft 61, journaled in bearings in a lug 62, secured to the Work support. This rock shaft is provided with an upwardly and outwardly extending arm 63, in which, near its upper end, is fitted a bolt The invention consists in the matters hereinafter described and referred to in the api pended cl 7 he invention is illustrated in panying drawings, in whichigure 1 is a front elevation of a blind stitch machine, embodying my invention; Fig. 2 is the accom- 64, upon which is pivoted one end of a link 65, which at its opposite end is pivoted on a bolt 66, secured to the upper end of the arm 67, which latter is at its lower end clamped upon the shaft it. therefore, that as the shaft u oscillates, the shaft 62 rocks, and swings the arm 60, bodily, thus moving the feed dogs 55 and 56 bodily back and orth.

Near its inner end, the shaft 59 has fixed upon it, a downwardly projecting arm 68,

which, at its lower end stud 69, upon which is pivoted one en of a pivoted on the stud 71, secured in the lower end of the lever or crank 72,

This lever or crank 72 is normally pinned upper end to the shaft a. This pinning toof the two by means of a spring catch 74, pivoted to the crank 73, and having a When the cranks 72 and 73 are pinned together, they move as one, and the oscillations ment to the arm 68. A leaf spring 7 6 is secured to the end of the shaft 59, and rests the arm 68. When the arm 68 has swung through its connection to the shaft u, the then the other of the leaf spring 76, and through the leaf spring 7 6 impart an osciling the forward ends of the feed dogs 55 and 56 up and down. This will cause the the fabrics, and allow unequal thicknesses of fabric to pass beneath the feed dog without feed.

Means are provided for automatically rework plate is lowered for the insertion or removal of the work, and to this end, the downwardly into position to be engaged by on the machine standard, whereby when the work the clutch will be tripped and release the 7 3, holding the catch in disengaged position position, and the shaft it begins to oscillate These and described as they are shown in detail in my applicatlon 117,878, filed July 31, 1902. tion as applied to a top feed mechanism, 1t will be readily understood that ruffiing or curved link 70, which, at its lower end is loosely sleeved on the shaft to.

to the crank 7 3, fixed at its gether cranks is accomplished latch engagmg the slot 7 5 in the crank 7 2.

of the shaft u transmit an oscillatory moveat its lower end between projections 7 on projections will engage first one side and latory movement to the shaft 59,thus swingfeed dogs to be yieldingly pressed against in any way retarding or interfering with the leasing the top feed mechanism when the spring catch 74 has its lower end projecting a projectlon 77 support is lowered,

crank 72 from engagement with the crank until the work support returns to elevated connections are not herein specifically shown While I have herein described my inven gathering blades may be substituted for the is provided with afeed dogs 55 and 56, which will ruflie or gather the goods, and I, therefore, wish to claim my invention broadly enough to cover the mechanism, whether applied for operating a ruffling attachment or top feeding dogs.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. In ablind stitch sewing machine having an overhanging arm, a needle and looper mechanism supported thereby, a work support extending parallel with the overhanging arm, and extending beneath the needle and looper mechanism and having a ridge l or rib over which the goods are crimped, a fabric manipulating device including a swinging framework pivotally attached to the work support and carrying a member engaging the fabric, means for oscillating said framework to move said member bodily backward and forward and means for swinging said member on said framework up an down; substantially as described.

2. In a blind stitch sewing machine having an overhanging arm, a needle and looper mechanism supported thereby, a work support extending parallel with the overhang ing arm, and extending beneath the needle and looper mechanism and having a ridge or rib over which the goods are crimped, a feeding mechanism within the work suppor a fabric manipulating device including a swinging framework pivotally attached to the work support, and carrying men gaging the fabric, means for oscillating said framework to move said members bodily backward and forward, and means for swinging them up and down, each of said means being operatively connected to the feeding mechanism; substantially as described.

3. In a blind stitch sewing machine having an overhanging arm supporting a needle, and looper mechanism, a work support extending beneath the overhanging arm, an having a ridge-forming rib over which the goods are crimped, a top feed mechanism comprising feeding blades, a rock shaft supporting the same, and means for oscillating said rock shaft, a framework pivoted to the work support in which framework said 1 rock shaft is journaled, an oscillating shaft, and connections between the framework an the oscillating shaft, whereby the framework is oscillated; substantially as described.

4. In a blind stitch sewing machine having an overhanging arm supporting a nee le, and looper mechanism, a work support extending beneath the overhanging arm, an

having a ridge-forming rib over which the goods are crimped, a top feed mechanism comprising a framework pivoted to the work support of the machine frame, an oscillating shaft, connections between the oscillating shaft and the pivoted framework for oscil- I lating said framework, upright supporting arms, a rock shaft journaled therein, a secand work-moving devices rock shaft; substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

LANSING ONDERDON K.

attached to the 0nd oscillating shaft, and connections be- Witnesses:

tween the rock shaft, and said oscillating W. L. SNIFT,

shaft, whereby the rock shaft is oscillated, MILLARD VAN "VAGNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

